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MCP1651

750 KHz Step-Up DC/DC Controller w/Low Battery Detect

Status: In Production

Features:

  • 560/440 Output Current (mA)
  • Output Power Capability Over 5 Watts
  • Output Voltage Capability From 3.3V to Over 100V
  • 750 kHz Gated Oscillator Switching Frequency
  • Adaptable Duty Cycle for Battery or Wide-Input, Voltage-Range Applications
  • Input Voltage Range: 2.0V to 5.5V
  • Capable of SEPIC® and Flyback Topologies
  • Shutdown Control with IQ < 0.1 µA (Typical)
  • Low Operating Quiescent Current: IQ = 120 µA
  • Voltage Feedback Tolerance (0.6%, Typical)
  • Popular MSOP-8 Package
  • Peak Current Limit Feature
  • Two Undervoltage Lockout (UVLO) Options: 2.0V or 2.55V
  • Operating Temperature Range: -40°C to +125°C
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

MCP1651 is a 750 kHz gated oscillator boost controller packaged in an 8 or 10-pin MSOP package. Developed for high-power, portable applica-tions, the gated oscillator controller can deliver 5 watts of power to the load while consuming only 120 µA of quiescent current at no load. MCP1650/51/52/53 can operate over a wide input voltage range (2.0V to 5.5V) to accommodate multiple primary-cell and single-cell Li-Ion battery-powered applications, in addition to 2.8V, 3.3V and 5.0V regulated input voltages. An internal 750 kHz gated oscillator makes the MCP1650/51/52/53 ideal for space-limited designs. High switching frequency minimizes the size of the external inductor and capacitor, saving board space and cost. The internal oscillator operates at two differ-ent duty cycles depending on the level of the input volt-age. By changing duty cycle in this fashion, the peak input current is reduced at high input voltages, reducing output ripple voltage and electrical stress on power train components. When the input voltage is low, the duty cycle changes to a larger value in order to provide full-power capability at a wide input voltage range typical of battery-powered, portable applications. The MCP1650/51/52/53 was designed to drive external switches directly using internal low-resistance MOSFETs. Additional features integrated on the MCP1650/51/52/ 53 family include peak input current limit, adjustable output voltage/current, low battery detection and power-good indication.

Additional Features
    • 560/440 Output Current (mA)
    • Output Power Capability Over 5 Watts
    • Output Voltage Capability From 3.3V to Over 100V
    • 750 kHz Gated Oscillator Switching Frequency
    • Adaptable Duty Cycle for Battery or Wide-Input, Voltage-Range Applications
    • Input Voltage Range: 2.0V to 5.5V
    • Capable of SEPIC® and Flyback Topologies
    • Shutdown Control with IQ < 0.1 µA (Typical)
    • Low Operating Quiescent Current: IQ = 120 µA
    • Voltage Feedback Tolerance (0.6%, Typical)
    • Popular MSOP-8 Package
    • Peak Current Limit Feature
    • Two Undervoltage Lockout (UVLO) Options: 2.0V or 2.55V
    • Operating Temperature Range: -40°C to +125°C

Documents

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Data Sheet

02/05/2013
458KB

Design Guides

Product Line Card

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MCP1650 SEPIC Power Supply Demo Board
MCP1650 SEPIC Power Supply Demo Board ( MCP1650DM-DDSC1 )

The MCP1650 SEPIC Power Supply Demo Board is used to evaluate Microchip’s MCP1650 boost controller in a low power application that requires a regulated output voltage from an input source that can be greater than, less than, or equal to the output voltage. As provided, the MCP1650 SEPIC Power Supply Demo Board generates a 5.0V output from a 3.0V to 7.0V source.

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MCP1650 Boost Controller Eval Board
MCP1650 Boost Controller Eval Board ( MCP1650EV )

The MCP1650 Boost Controller Evaluation Board demonstrates Microchip Technology’s MCP165X Boost Controller product family in two high-power, boost-converter applications. The first application features the MCP1651 (8-pin MSOP) with the low battery detect feature and provides a regulated 5V output with an input voltage range of 2.8V to 4.8V. The second application uses the MCP1653 (10-pin...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP1651R-E/MS
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP1651RT-E/MS
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
MCP1651S-E/MS
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP1651ST-E/MS
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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